- Mobile's secret house
Get the key in Level 6, and fight some wolverines. Notice the small house in the background with a path. Keep walking along the top of the screen to enter a secret path that leads to Mobile's house. Mobile sells a special training manual for $57.50 that unlocks a special move.

- Blood mode
At the title screen, press A, B, A, X, A, B(2).

- Trade life for $50
While you are playing this game, keep pushed LT + RT and press Up(2), Down(2), Left, Right, Left, Right, B, A.

- Zombie mode
At the title screen, press Down, Up, Right, Down, Up, Right, Down, Up, Right(3).

- Hidden money and shortcut
At the begin of Level 5: 'Halloween Party', move backwards to the door with the stars on it to access a secret Subspace Highway. You will collect money and exit the highway past the halfway point of the level. Notice: You can pause the game and select 'Return To Map' immediately after collecting all the coins to not skip ahead but still get the extra money. -From: MrStilwater

- Play as Nega-Scott
Successfully complete the game with Kim, Ramona, Scott, and Stills to unlock Nega-Scott.

- Video store items
Pay the $504.25 fine at the video store to unlock the corresponding items for purchase for $4.95. Notice: You will have to pay the fine again if you play as a different character.

I Love Your Boyfriend	Gives +320 XP, +15 DEF, +15 WP
Alien vs. T-Rex	Gives +20 STR
Alone And Disturbed	Gives +1,500 experience points
Seven Shaolin Masters	Gives +100 XP, +10 DEF, +10 SPD, +10 WP, +10 STR
The Mystical Head	Extra life, maximum of nine

- Scott's Power Of Love Sword
At the title screen, press X(3), A, B, Y.

- Coin sprites changed to animal sprites
At the title screen, press Up(2), Down(2), Up(4).

- Both players can select the same character
At the title screen, press Down, RB, Up, LB, Y, B.

- Boss Rush mode
At the title screen, press Right(2), B, RB, Right(2), B, RB.

- Achievements
Do the following things to obtain the corresponding Gamerscore points:

10 Points
Invulnerable	Play through a World and reach the boss without getting hit.
Twin Dragons	Overcome the Twins simultaneously.
Dirty Trick	Overcome an enemy by throwing an object at him while he’s already down.
New Challenger	Overcome Matthew Patel without losing a life.
Get The Girl	Clear the game once with Scott.
20 Points
Shopaholic	Buy all the items of a shop.
Vigilante	Overcome all enemies in a World, excluding the boss.
The Power Of Friendship	In a multiplayer game, reanimate another player at least 25 times.
One Man Army	Clear the game in single player on the 'Supreme Master' difficulty setting.
Armed And Dangerous	Overcome at least 200 enemies using interactive objects.
Gourmet	Eat every food items.
30 Points
'Chaudown'	Unlock and call all strikers.

10 Points
It's All In The Reflexes	Caught a flying object at least 25 times with Knives.
20 Points
Ninja Somersault	Performed at least 10 consecutive head stomps successfully with Knives.
Speed Run	Cleared the game in 90 minutes or less with Knives.

- Play as Mr. Chau
When you see Mr. Chau on a random stage, go to that stage to fight him. Overcome him to unlock him as a striker.




- Wallace Wells' secret shop
Go to the shopping district in the Frozen Suburbs. Find the ramp that leads down to an underpass. Go up to the star painted on the rear wall. A cement panel will open, allowing access to a shop that sells expensive powerful items.

- Sound Check level
In 'Realize Ranking' in the pause menu on Overworld, press LB(3), RB(3), LB, RB to unlock the Sound Check level.

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